21121677

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 31466240

約数和(自身を除く): 10344563

約数列:

[1, 3, 9, 61, 79, 183, 237, 487, 549, 711, 1461, 4383, 4819, 14457, 29707, 38473, 43371, 89121, 115419, 267363, 346257, 2346853, 7040559, 21121677]

約数ペア:

[(1, 21121677), (3, 7040559), (9, 2346853), (61, 346257), (79, 267363), (183, 115419), (237, 89121), (487, 43371), (549, 38473), (711, 29707), (1461, 14457), (4383, 4819)]